{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "421315283",
    "entityType": "User",
    "nonce": "0xadaf34d0b3f32481f71d00baaec0a62d740f5ab8d9ed5b109847c0bc85c167d4",
    "signature": "0xcb8aeb6fa157042163eae62a6b8cd31e289a9a2e734ab9cdaa7a334be08cfc0a47955bb9609fb003220116f8de885988148391d6117a1814df63de944c16e30b1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}